baber/WOPTO huggingface dataset:
Patent KR-20030045354-A (KR)
Title: An apparatus for preventing plating solution in mixing tank from solidifying and removing solidification materials in the tank
Inventor: JIN SEONG YONG
IPC: C25D19/00
Filed: 2001-12-03
Abstract: PURPOSE: An apparatus capable of preventing solution from being solidified and removing solidified material is provided to constantly maintain density of solution contained in a mixing tank by continuously scrapping solidified materials from an inner wall of the mixing tank. CONSTITUTION: A solidified material removing apparatus(1) includes a main rotating shaft(20), an anti-solidification section(40) and a solidified material removing section(60). The main rotating shaft(20) is vertically installed at a center of a mixing tank(10) filled up with plating solution. A lower end(20a) of the main rotating shaft(20) is fixedly supported by a bearing block(24) so that the main rotating shaft(20) is rotated in the mixing tank(10) when a driving motor(22) is driven. The anti-solidification section(40) has a plurality of stirring members(42) arranged in a circumferential direction of the mixing tank(10) in such a manner that the stirring members(42) are operated together with the main rotating shaft(20).
Patent KR-20030046274-A (KR)
Title: e-mail transmission that informs an achievement on foreign language problems connected by a single-string path
Inventor: SHEEM SANG KEUN
IPC: G06Q50/20
Filed: 2001-12-05
Abstract: PURPOSE: An e-mail report of completing a foreign language problem linked one pate is provided to enable a student to study without feeling lonesomeness and isolation by automatically informing a parent of the completion of the foreign language problem solved by a minor. CONSTITUTION: The problems for improving skillful in the foreign language through the Internet are woven in the continuous one stream path. When the user makes a wrong answer, the user is returned to the problem and is found out a correct answer. At the last step, the completion is automatically informed to the parent as the e-mail. The e-mail does not include a grade to evaluate the completion.
Patent KR-20030046754-A (KR)
Title: Nanoclay-containing polyamide resin composition
Inventor: JUNG YONG GYUN
IPC: C08L77/00
Filed: 2001-12-06
Abstract: PURPOSE: A nanoclay composite reinforced polyamide resin composition is provided, to prevent the deterioration of elongation and to improve the elongation by employing titanium dioxide. CONSTITUTION: The nanoclay composite reinforced polyamide resin composition comprises a polyamide resin and nanoclay, and has the elongation of 10.0-45.0 % and a flexural modulus of 36,000-66,000. Also the nanoclay composite reinforced polyamide resin composition comprises 85.0-97.9 wt% of a polyamide resin; 2-10 wt% of nanoclay; and 0.1-5 wt% of titanium dioxide. Preferably the titanium dioxide is the rutile or anatase-type titanium dioxide whose surface is modified with an organic material or silica, and has a particle size of 0.2-0.5 micrometers; and the nanoclay is the nanoclay whose surface is treated with an organic modifier represented by the formula 1, wherein R1 is H or a methyl group and R2 is an alkyl group of C8-C18.
Patent KR-20030046923-A (KR)
Title: Chage coupled device with enhanced charge transfer capability
Inventor: KWON GYEONG GUK
IPC: H01L27/14
Filed: 2001-12-07
Abstract: PURPOSE: A CCD(Charge Coupled Device) is provided to be capable of improving the charge transfer efficiency between a photo diode region and a VCCD(Vertical Charge Coupled Device) by aligning the center portions of a transfer gate and the photo diode on the same line. CONSTITUTION: Video signals are transformed into electric signals by using a light receiving part(21), wherein the light receiving part includes a plurality of photo-diodes. Charges generated from the light receiving part(21) are transferred to a VCCD(22) by using a transfer gate(23). The charges supplied from the transfer gate(23) are then transferred to the vertical direction by using the VCCD(22). At the time, the first center portion(25) of the transfer gate(23) is aligned with the second center portion(24) of the light receiving part(21) on the same line. Preferably, the first and second polysilicon layer are used for the VCCD(22) and transfer gate(23), respectively.
Patent KR-20030054480-A (KR)
Title: METHOD FOR REDUCING Fe DISSOLUTION AND DROSS AMOUNT IN A ZINC PLATING TANK
Inventor: LEE SEOK GYU
IPC: C23C2/06
Filed: 2001-12-26
Abstract: PURPOSE: A method for reducing iron elution from strip and dross amount in galvanizing pot is provided to reduce amount of iron eluted from the strip and reduce amount of dross generated by iron when strip for coating operation passes through galvanizing pot. CONSTITUTION: In a process for producing galvanized strip by passing strip through galvanizing pot, the method is characterized in that generation of dross is minimized by injecting preliminary galvanizing solution containing aluminum into the galvanizing pot(3) through snout, thereby suppressing elution of iron through promotion of reaction between iron and aluminum and uniformly maintaining solid solubility of iron through consistent aluminum injection, wherein the snout is extended to the front of sink roll(4) around which the strip(1) is wound in the galvanizing pot(3), wherein aluminum in the preliminary galvanizing solution(7) injected into the galvanizing pot(3) is in the range of 1 to 3 wt.% in production of galvannealed steel sheet, and wherein aluminum in the preliminary galvanizing solution(7) injected into the galvanizing pot(3) is in the range of 5 to 7 wt.% in production of general hot dipped galvanized iron.
Patent KR-20030056191-A (KR)
Title: Ceiling door
Inventor: HWANG JEOM SOO
IPC: E04B9/00
Filed: 2001-12-27
Abstract: PURPOSE: A ceiling access door is provided not to damage the appearance of a ceiling by making an access door in small and to operate an access door easily. CONSTITUTION: The ceiling access door comprises an outer frame(100) for fixing to an opening of a ceiling, a door(200) hinged on the outer frame, and a locking device(300) for controlling the locking/unlocking of the door(200), wherein the locking device(300) contains a working shaft unified with a control knob, a spring for giving vertical elasticity to an operating piece, an operating piece attached to one side of the working shaft, and a housing attached to one side of the door(200) to support the working shaft.
Patent KR-20010072302-A (KR)
Title: 수신 신호 전력을 추정하는 동안 다중 가변 이득 증폭기를제어하는 자동 이득 제어 회로
IPC: H04B1/10
Filed: 1999-08-06
Abstract: 본 발명은 이득 또는 감쇠가 여러 증폭기 사이에서 분배되는 방식과는 상관없이 유효하게 남아있는 수신 전력 추정값을 제공하는 동안, IP3 성능을 개선하고 필요한 증폭기 전류를 줄이기 위해 다수의 AGC 증폭기 구성을 수용하도록 구성될 수 있는 일반적인 신규하고 개선된 AGC 회로이다.  일반적인 제어 회로는 상기 값에 반응하여 적어도 두개의 증폭기 스테이지에 이득을 분배하여 단일한 전체 이득 증폭값의 상기 전력 추정값을 유지한다.  적은 키 파라미터를 프로그램 또는 하드코딩함으로써, 일반적인 제어 회로는 넓은 다수의 증폭기 구성을 제어할 수 있다.
Patent KR-20010074807-A (KR)
IPC: G01C19/5684
Filed: 1999-08-10
Abstract: An angular rate sensor or gyro includes a ring-like resonator (1) mounted by support beams (2) extending from the inner periphery of the ring (1) to a boss (4) on a base (3). The support beams (2) are flexible and allow the resonator (1) to vibrate in response to an electrostatic drive (6, 8) in a substantially undamped oscillation mode to permit the resonator to move relative to the support in response to turning rate. The support beams (2) and resonator (1) are made from crystalline silicon. Electrostatic sensors (7, 9) are provided for sensing movement of the resonator (1). The drive (6, 8) and sensors (7, 9) have plate-like elements made from crystalline silicon having surfaces located substantially normal to the plane of the resonator (1) at a spacing from the adjacent outer periphery of the resonator (1). The ratio of the thickness of the resonator (1) at the outer periphery (1b) to the width of the spacing (11) between the periphery (1b) and the element surfaces (10) is in the range of from 10:1 to 40:1.
Patent KR-20010074852-A (KR)
Title: 코리올리 질량 유량계용 고온 구동 시스템
IPC: G01F1/84
Filed: 1999-08-11
Abstract: 본 발명은 고온 환경에서 이용하기 위한 구동 시스템(104)에 관한 것이다.  이러한 구동 시스템(104)은 질의 저하없이 고온 환경에서 견딜 수 있는 물질로 구성된다.  이러한 구동 시스템(104)에는 플라스틱 또는 에폭시 접착제가 없다.  입구와 출구 사이의 유동관의 루프 외부의 유동관 상에 구동 시스템을 위치시킴으로써 구동 시스템이 보다 효과적이게 된다.
Patent KR-20010073025-A (KR)
Title: 오일 및 산화철이 포함된 잔여물의 열처리 방법
IPC: C21B13/06
Filed: 1999-08-30
Abstract: 본 발명은 다수의 로상으로 구성되어 있는 다중 상로내에서 오일 및 산화철이 포함된 잔여물의 열처리 방법에 관한 것이다.  오일 및 산화철이 포함된 잔여물은 고체환원제와 혼합되어 연속적으로 다중 상로에 공급되고, 최상부의 로상에 주입된후 점차 하부의 로상으로 운반된다.  최상부 로상에서 잔여물은 건조된다.  오일은 기화되어 열분해되고, 환원제는 산화철과 반응하여 직접 환원철을 생성한다. 상기 직접환원철은 다중 상로의 바닥 로상 영역에서 환원제 잔여물과 더불어 배출된다.
Patent KR-20010074884-A (KR)
IPC: C25D11/24
Filed: 1999-08-27
Abstract: There is disclosed a method for surface treating aluminum products, especially vehicle wheels, to improve their brightness. The method comprises: (a) applying a chemical brightening composition to these products; (b) deoxidizing the surface of these wheel products in a nitric acid-based bath; (c) forming a porous oxide on that with an electrolytic bath containing phosphoric acid; and (d) applying, preferably spraying, a siloxane-based film to that porous oxide. In many instances, intermediate rinsing substeps are performed between these respective main steps.
Patent KR-20010085774-A (KR)
IPC: C07D417/10
Filed: 1999-09-09
Abstract: R이 쇄 (A) 또는 (B)를 나타내고; R 1 이 메틸 또는 에틸을 나타내며; R 2 가 임의로 치환된 방향족 또는 임의로 치환된 헤테로 방향족이며; R 3 및 R 4 는 동일하거나 상이하고 임의로 치환된 방향족 또는 임의로 치환된 헤테로 방향족이며; R′은 수소 원자 또는 -CO-alk 라디칼을 나타내는 화학식 1의 화합물, 이의 광학 이성체, 이의 염, 이들의 제조방법 및 이들을 함유하는 약제에 관한 것이다.
Patent KR-20010080188-A (KR)
IPC: C07C37/00
Filed: 1999-10-05
Abstract: 본 발명은 
     a) 비스(4-히드록시아릴)알칸과 방향족 히드록시 화합물의 부가 생성물의 용융물로에 불활성 기체 스트림을 150 내지 230℃에서 통과시켜서 상기 용융물로부터 방향족 히드록시 화합물을 제거하는 단계, 
     b) 방향족 히드록시 화합물을 응축에 의해 불활성 기체 스트림으로부터 제거하는 단계, 및 
     c) 불활성 기체 스트림을 정제, 압축하여 단계 a)로 재순환시키는 단계 
     를 포함하는, 비스(4-히드록시아릴)알칸과 방향족 히드록시 화합물의 부가 생성물로부터 비스(4-히드록시아릴)알칸을 제조하는 방법에 관한 것이다.
Patent KR-20010100994-A (KR)
IPC: A61K8/37
Filed: 1999-10-30
Abstract: 본 발명은 (a) 4차 에스테르, (b) 오일 성분 및 (c) 지방 알코올을 함유하는 양이온-활성 혼합물의 피부 세정제 및 피부 케어제의 제조를 위한 용도에 관한 것이다.   이 제제는 신속하게 퍼지고 어떠한 잔류물도 남기지 않으면서 빠르게 흡수되는 것을 특징으로 한다.
Patent KR-20010101076-A (KR)
IPC: A63C17/00
Filed: 1999-11-12
Abstract: 신발부(22)와 표면을 가로지를 수 있는 복수의 바퀴(24)를 갖는 인라인 스케이트(18)용 스케이트 프레임(20). 상기 스케이트 프레임은 제1평균 밀도를 갖는 구조재료를 포함하는 가늘고 긴 구조 부재를 포함한다. 상단부와 하단부를 각각 구비한 제 1 및 제2측벽(62 및 68)을 갖는 구조 부재. 상기 구조 부재는 또한 적어도 측벽의 상단부 사이에 걸쳐있는 신발 장착부(50)를 포함한다. 바퀴 부하 도입부(58)를 갖는 제1 및 제2측벽에서 바퀴에 관련된 부하가 구조 부재로 전달된다. 신발 부하 도입부를 갖는 신발 장착부에서 신발부에 관련된 부하가 구조 부재로 전달된다. 스케이트 프레임은 또한 제1 및 제2측벽중 적어도 하나 또는 신발 장착부 내부에 배치된 코어재료(64)를 포함한다. 측벽 및/또는 구조재료 또는 충전재에 의해 신발 장착부 내부에 밀봉된 코어재료. 상기 코어재료는 적어도 바퀴와 신발 부하 도입부에는 존재하지 않는다.
Patent KR-20010080666-A (KR)
Title: Improvement of fine granularity scalability using bit plane coding of transform coefficients
IPC: G06T9/00
Filed: 1999-11-04
Abstract: A system for efficient bit plane coding of transform coefficient data, such as DCT data used in a video coding system. Decimal values for the transform coefficients, e.g., in a block of several coefficients, are converted to binary values, where each bit occupies a corresponding bit plane, from the most significant bit to the least significant bit. One bit from each coefficient is provided in a common bit plane. A one-bit flag or codeword (such as "0") is used for coding - one or more initial all-zero bit planes, while another one-bit flag (such as "1") is used for designating the first subsequent non-all-zero plane. For the first non-all-zero plane, a reduced coding table is used to provide codewords that follow the one-bit flag. The coding table is reduced in size since it does not require a special "all-zero" codeword. Additionally, the use of a one-bit flag for designating the initial all-zero bit planes reduces the required number of coding bits over prior art schemes that require multi-bit all-zero codewords. An encoder (200) includes a "0" codeword function (242), a "1" codeword function (244), a reduced table (246), and conventional tables (248). A corresponding decoder (400) includes a "0" codeword function (442), a "1" codeword function (444), a reduced table (446), and conventional tables (448).
Patent KR-20010080761-A (KR)
IPC: C07D263/56
Filed: 1999-12-02
Abstract: 본 발명은 화학식 I로 표시되는 화합물 또는 그의 염에 관한 것으로, 당뇨병약, 비만약, 고지혈증약의 β3 관련 질환의 치료 및 예방에 사용되는, 특히 경구 투여에 적합한 의약 조성물에 관한 것이다. 
     <화학식 I> 
     
       
     
     식 중, R 1 은 수소 원자, 메틸기 또는 SO 2 R 3 을 나타내고, R 2 는 O, S 또는 H 2 를 나타내고, R 2' 는 O 또는 H 2 를 나타내며, R 3 은 저급 알킬기 또는 NR 4 R 4' 를 나타내고, R 4 및 R 4' 는 동일하거나 또는 서로 상이할 수도 있는 수소 원자, 저급 알킬기 또는 벤질기를 나타내고, R 5 는 수소 원자 또는 저급 알킬기를 나타내며, k 및 m은 0 또는 1을 나타내고, A는 화학식 II 또는 화학식 III을 나타내고, 
     <화학식 II> 
     
       
     
     <화학식 III> 
     
       
     
     X 1 은 2급 질소 원자, 산소 원자, 황 원자 또는 메틸렌기를 나타내고, n은 1 또는 2를 나타내며, X 2 는 2급 질소 원자, 산소 원자 또는 황 원자이고, R 6 , R 7 , R 8 은 수소 원자 등이다.
Patent KR-20020008394-A (KR)
Title: 치환된 벤조일 케톤, 그의 제조방법 및 제초제로서의 그의용도
IPC: A01N53/04
Filed: 2000-04-26
Abstract: 본 발명은 하기 일반식 (I)의 신규 치환된 벤조일 케톤, 그의 제조방법 및 제초제로서의 그의 용도에 관한 것이다: 
     
       
     
     상기 식에서, 
     n 은 0, 1, 2 또는 3을 나타내며, 
     A 는 단일 결합을 나타내거나, 알칸디일(알킬렌)을 나타내고, 
     R 1 은 수소를 나타내거나, 각 경우에 임의로 치환된 알킬 또는 사이클로알킬을 나타내며, 
     R 2 는 수소, 시아노, 카바모일 또는 할로겐을 나타내거나, 각 경우에 임의로 치환된 알킬, 알콕시, 알콕시카르보닐, 알킬티오, 알킬설피닐 또는 알킬설포닐을 나타내고, 
     R 3 은 수소, 니트로, 시아노, 카르복시, 카바모일, 티오카바모일 또는 할로겐을 나타내거나, 각 경우에 임의로 치환된 알킬, 알콕시, 알킬티오, 알킬설피닐, 알킬설포닐, 알킬아미노, 디알킬아미노 또는 디알킬아미노설포닐을 나타내며, 
     R 4 는 니트로, 시아노, 카르복시, 카바모일, 티오카바모일 또는 할로겐을 나타내거나, 각 경우에 임의로 치환된 알킬, 알콕시, 알킬티오, 알킬설피닐, 알킬설포닐, 알킬아미노, 디알킬아미노 또는 디알킬아미노설포닐을 나타내고, 
     Z 는 1 내지 4 개의 헤테로원자(4 개 이하의 질소원자 및 임의로-대체적으로 또는 추가로- 하나의 산소원자 또는 하나의 황원자, 또는 하나의 SO 그룹 또는 하나의 SO 2 그룹) 및 추가로 헤테로사이클의 구성원으로서 1 내지 3 개의 옥소 그룹(C=O) 및/또는 티옥소 그룹(C=S)을 함유하며 임의로 치환되고 포화 또는 불포화되며 모노사이클릭 또는 바이사이클릭인 4- 내지 12-원(membered) 헤테로사이클릭 그룹을 나타낸다.
Patent KR-20020001859-A (KR)
IPC: B23C5/22
Filed: 2000-03-29
Abstract: 회전 선축에 대해 회전가능한 절삭 공구 조립체(10)는 공구(12)와 그 안에 장착된 복수의 절삭 인서트를 포함한다.  공구(12)는 공구 보디(2)에 부착된 크라운(18)을 포함한다.  절삭 인서트(14) 중의 하나는 다수의 표시가능한 절삭 에지(62)를 갖고 일반적으로 방사상으로 지향된 인서트 수용 포켓(51)에서의 공구에 클램프된다.  공구 보디(20)는 절삭 인서트(14)가 인접한 원의 표면(30)을 갖고, 원표면은 공구 보디(20)의 외주(27)로 연장하고 내부 후방으로 경사진다.
Patent KR-20020026476-A (KR)
Title: 무선 수신 장치와 무선 수신 방법, 통신 단말 장치 및 기지국 장치
IPC: H04B7/06
Filed: 2001-04-27
Abstract: 전환 제어부(201)에 의해서 스위치(202) 및 스위치(203)가 전환 제어되고, +A만을 포함하는 심볼 D plus 가 메모리(204)측으로, -A를 포함하는 심볼 D minus 가 메모리(205)측으로 각각 배분되어 출력되고, 메모리(204)와 가산기(206)에 의해서 D plus 끼리가 동상 가산되고, 메모리(205)와 가산기(206)에 의해서 D minus 끼리가 동상 가산되고, 2승 가산부(207)에 의해서 동상 가산 후의 D plus 와 동상 가산 후의 D minus 가 각각 2승된 후 가산된다.
Patent KR-20020023276-A (KR)
Inventor: LEE JEONG MIN
IPC: B65D21/00
Filed: 2002-01-07
Abstract: PURPOSE: A cup shaped container with a discharge cap designed to be piled on in empty state is provided to prevent the phenomenon of vacuum generated between the empty containers when they are piled on, thus to help a user to easily separate the containers. CONSTITUTION: The cup shaped container(1) designed to be piled comprises a body(2) formed to be gradually widen from a bottom surface(4) to a top opening, and a discharge cap(7) projected from the bottom surface thereof to discharge the contents received in the container. The discharge cap is able to be designed in various forms. When the empty cup shaped containers are piled on, these containers are able to be stacked so that they are spaced from each other at regular distances due to the discharge cap.
Patent KR-20030062542-A (KR)
Title: (β)-METHYL BAYLIS-HILLMAN ADDUCTS AND METHOD FOR THE PREPARATION THEREOF USING THE INDIUM METAL
Inventor: BAE AE NIM
IPC: C07D307/12
Filed: 2002-01-17
Abstract: PURPOSE: Provided is a method of making β-methyl substituted Baylis-Hillman product represented by the formula(1) with indium easily under mild condition. The product is useful as precursor for the synthesis of carbapenem antibiotics. CONSTITUTION: A method of preparation of making β-methyl substituted Baylis-Hillman product comprises the steps of: making a compound of the formula (IV) by mixing and reacting a compound of the formula (II) with a compound of the formula(III) in a solvent, followed by addition of indium, stirring, reacting with acid and extraction; and adding the compound of the formula(IV) and base. In the formula (IV), R is alkyl, cycloalkyl, aryl or heterocyclic compound; R1 is alkyl, aryl or heterocyclic compound.
Patent KR-20030064584-A (KR)
Inventor: PYON SANG BOK
IPC: B43K21/033
Filed: 2002-01-28
Abstract: PURPOSE: An improved sharp pencil is provided which not only draws out sharp pencil core more simply and obtains better writing feeling during writing using the sharp pencil, but also absorbs impact of writing pressure so that the sharp pencil is not easily broken. CONSTITUTION: The improved sharp pencil is characterized in that a catch projection(2) is formed at the lower part of a hollow inner wall of sharp pencil case(1), spring washer(4') is installed inside central hole(4) of rubber stopper(3) fixed to the upper spiral wall of the sharp pencil case(1), the upper part of an ordinary shape pencil core holding tube(8) penetrating the central hole of flat plate(7) put on spring(6) is tightly inserted into the lower part of an ordinary sharp pencil core case tube(5) loosely inserted into the bottom of the spring washer(4'), conical central hole(9) of spring supporting plate(11) on which flange(10) is formed is loosely inserted into conical part(8') of the lower part of the shape pencil core holding tube(8), the flange(10) is rotated in the state that the flange is not come off from the inner wall of the sharp pencil case(1) since an inner wall of the upper part of conical tube(13) in which nozzle is stuck is screwed in on the spiral wall of the spring supporting plate(11) so that the flange(10) on the spring supporting plate(11) is locked to catch projection(2) of the lower part of the inner wall of the sharp pencil case(1), and a ring shaped inserting member(14) formed in the upper part of a branch(15) can be inserted onto or taken out from an intermediate projection of the conical tube(13).
Patent KR-20030065600-A (KR)
Inventor: JUN BYEONG YUN
IPC: H03L7/00
Filed: 2002-01-30
Abstract: PURPOSE: A variable modulation clock generator is provided which prevents data damage to be synchronized to a data signal by controlling a frequency of an internal clock signal using a NCO(Number Counter Oscillator) for synchronization between the internal clock signal and the data signal. CONSTITUTION: A MUX board(23) receives a transmission clock signal applied from the external and a receiving clock signal generated in a receiver, and then outputs one of them. The first control signal generator(22) generates a data write signal and a data write address signal by receiving the clock signal selected in the MUX board. The second control signal generator(24) generates a data read address signal by receiving the data write address signal from the first control signal generator. A transmission buffer(21) buffers a transmission data signal, by receiving the data write signal and the data write address signal and the data read address signal and the transmission data signal applied from the external. A clock generator(27) generates a clock signal to transmit the data signal. An NCO(26) controls the clock signal generated in the clock generator. And a transmitter(50) is constituted with a modulator generating a radio data transmission signal by receiving the clock signal and a buffered data signal, and a receiver(60) generates demodulates the radio data signal and then generates a data signal and a receiving clock signal.
Patent KR-20030035745-A (KR)
Title: Digital set top box having a function for storing/playing a audio/video signal for the satellite signal, cable signal and ground wave
Inventor: LEE GEON SU
IPC: H04N7/20
Filed: 2002-01-31
Abstract: PURPOSE: A digital set top box storing/reproducing an external audio/video signal and receiving a satellite signal, cable signal and ground wave is provided to add an external monitoring function to a satellite broadcasting receiver. CONSTITUTION: A digital set top box has an encoder for displaying a broadcasting signal received from a tuner on a display device. The encoder includes an audio analog-digital converter(112) for converting an analog audio signal into a PCM digital audio signal, a video input selector(114) for selecting one of analog video signals and outputting the selected signal to a video decoder(116) that converts the analog video signal into a digital video signal, and an MPEG-2 encoding unit(118) for converting the PCM digital audio signal and digital video signal into signals in the form of TS stream. The encoder further includes a data input selector(120) for selectively outputting communication data and data download data, an MPEG-2 demultiplexer for dividing transponder stream applied through the tuner into data bit stream, audio bit stream and video bit stream according to demultiplexing, and a TS input selector(130) for performing satellite broadcasting and external monitoring functions.
Patent KR-20030067037-A (KR)
Title: Contrast enhancement apparatus using histogram matching and method thereof
Inventor: OH JAE HWAN
IPC: G09G3/20
Filed: 2002-02-06
Abstract: PURPOSE: An apparatus and method for improving contrast using histogram matching are provided to control a degree of enhancement of contrast and to maintain relative brightness when the contrast is controlled. CONSTITUTION: An apparatus for improving contrast includes the first and second calculation units(210,220) and a mapping unit(230). The first calculation unit calculates the average and standard deviation of an input image. The second calculation unit calculates the average and standard deviation of a target image on the basis of the average and standard deviation of the input image. The mapping unit receives the average and standard deviation of the input image and the average and standard deviation of the target image from the first and second calculation units to generate a mapping function, and converts pixel values of the input image according to the mapping function to output pixel values of an output image.
Patent KR-20020024265-A (KR)
Title: Pen type optical mouse
Inventor: YANG TAE HUN
IPC: G06F3/0354
Filed: 2002-02-18
Abstract: PURPOSE: A pen type optical mouse is provided to maintain the uniform angle of an incident light. CONSTITUTION: A pen type optical mouse comprises a pen type housing(1) having a head(1a) combined to a cup type holder(4a) of a slider in a hip joint shape, a first and a second operating buttons(3a,3b) crosswise placed in the housing, a slider(4) rotatably combined to the lower end of the housing in a hip joint shape, a light source installed in the slider to irradiate a light onto the ground, an optical sensor installed in the slider to photoelectrically transform the light reflected on the ground, and a mouse driving circuit installed in the housing to generate mouse button data with response to click signals inputted from the operating buttons and to generate coordinate data with response to a signal inputted from the optical sensor. According to the hip joint shape combination of the pen housing and the slider, an incidence angle of light is maintained uniform.